The word "Guglielmi" is a common Italian surname, but its spelling can be tricky for non-native speakers. The IPA phonetic transcription of this word is /ɡuʎˈʎɛlmi/, which represents the sounds of each letter. The first sound, /ɡu/, is pronounced like "goo" with a slightly harder "g" sound. The "gli" combination is pronounced like "lyee," and the "el" is pronounced like "ell." The final sound, /mi/, is pronounced like "me." Put together, the correct spelling of "Guglielmi" reflects how it sounds in Italian.
The word guglielmi is an Italian surname that has its etymology rooted in the Latin language. It is derived from the Latin name Guilielmus, which later evolved into Guglielmo in Italian. Guilielmus itself was a combination of two Germanic elements: wil, meaning desire or will, and helm, meaning helmet or protection. Therefore, the name Guglielmi can be interpreted as meaning resolute protector or strong-willed guardian.